:root {
  --bg: var(--tg-theme-bg-color, #0f1115);
  --panel: var(--tg-theme-secondary-bg-color, #1a1d24);
  --text: var(--tg-theme-text-color, #e8eaf0);
  --muted: var(--tg-theme-hint-color, #8b93a6);
  --accent: var(--tg-theme-button-color, #3d7eff);
  --accent-text: var(--tg-theme-button-text-color, #fff);
  --danger: #e5484d;
  --ok: #3fb950;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 15px/1.4 system-ui, -apple-system, sans-serif; }
[hidden] { display: none !important; }
.view { height: 100%; }
.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); min-height: 1.4em; }
button, input, select { font: inherit; color: var(--text); background: var(--panel); border: 1px solid transparent; border-radius: 10px; padding: 10px 12px; }
button { cursor: pointer; }
button.primary { background: var(--accent); color: var(--accent-text); }
button.danger { background: var(--danger); color: #fff; }
button:disabled { opacity: .5; }

#joinView { display: flex; align-items: center; justify-content: center; padding: 16px; }
.card { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 12px; }
.card h1 { margin: 0; font-size: 22px; }
.card label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.card label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); font-size: 15px; }

#callView { display: flex; flex-direction: column; }
#grid { flex: 1; min-height: 0; display: grid; gap: 6px; padding: 6px; grid-auto-rows: 1fr; }
#grid.n1 { grid-template-columns: 1fr; }
#grid.n2 { grid-template-columns: 1fr; }
#grid.n3, #grid.n4 { grid-template-columns: 1fr 1fr; }
#grid.n5, #grid.n6, #grid.n7, #grid.n8, #grid.n9 { grid-template-columns: 1fr 1fr; }
@media (orientation: landscape) {
  #grid.n2 { grid-template-columns: 1fr 1fr; }
  #grid.n5, #grid.n6, #grid.n7, #grid.n8, #grid.n9 { grid-template-columns: 1fr 1fr 1fr; }
}
.tile { position: relative; background: #000; border-radius: 12px; overflow: hidden; min-height: 0; }
.tile video { width: 100%; height: 100%; object-fit: cover; display: block; }
.tile.me video { transform: scaleX(-1); }
.tile.me.back video { transform: none; }
.tile .label { position: absolute; left: 6px; bottom: 6px; background: rgba(0,0,0,.55); color: #fff; padding: 2px 8px; border-radius: 8px; font-size: 12px; display: flex; gap: 6px; align-items: center; max-width: calc(100% - 12px); }
.tile .label span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .lvl { width: 4px; height: 12px; background: #444; border-radius: 2px; position: relative; overflow: hidden; flex: none; }
.tile .lvl i { position: absolute; left: 0; right: 0; bottom: 0; background: var(--ok); height: 0; }
.tile .state { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #bbb; font-size: 13px; text-align: center; padding: 8px; pointer-events: none; }
.tile .stats { position: absolute; top: 6px; left: 6px; right: 6px; background: rgba(0,0,0,.65); color: #cfe; font: 11px/1.3 ui-monospace, monospace; padding: 4px 6px; border-radius: 6px; white-space: pre; pointer-events: none; }
.tile.speaking { outline: 2px solid var(--ok); outline-offset: -2px; }

#controls { display: flex; justify-content: center; gap: 8px; padding: 8px 8px calc(8px + env(safe-area-inset-bottom)); }
#controls button { width: 48px; height: 48px; padding: 0; font-size: 20px; border-radius: 50%; position: relative; }
#controls button.off { background: #555; opacity: .8; text-decoration: line-through; }
#unread { position: absolute; top: 4px; right: 4px; width: 10px; height: 10px; border-radius: 50%; background: var(--danger); }

#chat { position: absolute; left: 0; right: 0; bottom: calc(64px + env(safe-area-inset-bottom)); height: 45%; background: var(--panel); border-radius: 14px 14px 0 0; display: flex; flex-direction: column; box-shadow: 0 -4px 20px rgba(0,0,0,.4); }
#messages { flex: 1; overflow: auto; padding: 10px; display: flex; flex-direction: column; gap: 6px; }
#messages .m b { color: var(--accent); font-weight: 600; margin-right: 6px; }
#messages .m.mine b { color: var(--ok); }
#chatForm { display: flex; gap: 6px; padding: 8px; }
#chatForm input { flex: 1; background: var(--bg); }

#soundHint { position: absolute; top: 12px; left: 50%; transform: translateX(-50%); background: var(--accent); color: var(--accent-text); padding: 8px 14px; border-radius: 20px; z-index: 5; cursor: pointer; }